EP 3948847 A1 20220209 - ACTIVE SOUND MANAGEMENT IN NOISE CANCELATION SYSTEMS
Title (en)
ACTIVE SOUND MANAGEMENT IN NOISE CANCELATION SYSTEMS
Title (de)
AKTIVE SCHALLVERWALTUNG IN GERÄUSCHUNTERDRÜCKUNGSSYSTEMEN
Title (fr)
GESTION ACTIVE DU SON DANS DES SYSTÈMES DE SUPPRESSION DE BRUIT
Publication
Application
Priority
- US 201962827554 P 20190401
- US 2020025752 W 20200330
Abstract (en)
[origin: WO2020205756A1] Noise cancellation systems and methods are provided that receive a reference signal representative of a noise to be reduced and provide a noise cancellation signal based upon the reference signal. Some examples include a feedback signal representative of a residual noise in the environment. At least one of the reference signal, the noise cancellation signal, or the feedback signal is filtered to remove components based upon a rotational rate of a rotating equipment associated with the environment, such as an engine of a vehicle. Accordingly, the noise cancellation system may not interfere with sounds related to the engine.
IPC 8 full level
G10K 11/178 (2006.01)
CPC (source: EP US)
G10K 11/178 (2013.01 - EP); G10K 11/17823 (2017.12 - US); G10K 11/17825 (2017.12 - US); G10K 11/17854 (2017.12 - US); G10K 11/17881 (2017.12 - EP US); G10K 11/17885 (2017.12 - EP); B60Q 9/00 (2013.01 - US); G10K 2210/121 (2013.01 - US); G10K 2210/1282 (2013.01 - EP); G10K 2210/12821 (2013.01 - EP US); G10K 2210/3011 (2013.01 - US); G10K 2210/3014 (2013.01 - EP); G10K 2210/3026 (2013.01 - US); G10K 2210/3027 (2013.01 - US); G10K 2210/3028 (2013.01 - US)
Citation (search report)
See references of WO 2020205756A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020205756 A1 20201008; CN 113924615 A 20220111; EP 3948847 A1 20220209; EP 3948847 B1 20221019; JP 2022523873 A 20220426; JP 7187713 B2 20221212; US 2022208167 A1 20220630
DOCDB simple family (application)
US 2020025752 W 20200330; CN 202080035301 A 20200330; EP 20721056 A 20200330; JP 2021559043 A 20200330; US 202017600185 A 20200330